Multi aperture telescope for remote sensing using high precision adaptive optics

多口径望远镜是小卫星实现在轨大口径望远镜的一种解决方案。自适应光学不仅可以补偿单口径望远镜的波前像差，还可以补偿多口径望远镜的相位误差。一个可变形的镜子用数百个驱动器控制波前。本文提出了变形镜的控制算法。所采用的相分集方法是利用采集到的图像代替波前传感器来估计波前像差。构建了自适应光学实验系统，利用该方法获得了高对比度的图像。

Multi apertures telescope is a solution for small satellites to realize large aperture telescope in orbit. Adaptive optics compensates not only wavefront aberration of a single telescope but also phasing error in multi apertures telescope. A deformable mirror controls the wavefront with hundreds of actuators. The control algorithm of the deformable mirror was proposed in this work. The applied phase diversity method estimates the wavefront aberration using acquired images instead of using wavefront sensors. We constructed adaptive optics experiment system, then acquired images of high contrast using the proposed methods.